Increasing light week 5 of flower

twentyeight.threefive said:

As already mentioned increasing the duration of light will increase their DLI. If you over exceed what they need it will lead to light stress and could induce herms.

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What does DLI stand for?

Humanrob said:

What does DLI stand for?

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Daily Light Integral

You can also just add heat at night to better suit the humidity levels.

I have good airflow in the tent and an 6” ac infinity set at like 8 lol. Passive intake, basement, 5x5 and 3 plants in City Pickers. I already put the foam tops on them as well. AC will happen some day..

Turning out to be a good turnout tho. Glad I posted! Thanks y’all’s. Hope to learn some more.

Oldreefer said:

Being a long time auto grower, I can say the primary issue that will affect an auto is heat.
Switching up lighting schedule doesn't usually affect an auto as much as the dli/ppfd ratios for the schedule you're running. Get that right for your schedule and you're good to go....let'er rip tater chip.

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What is a good dli/ppfd for autos. I run 18/6, and my GG always droops a couple of hours before lights out. I’m at about 40-42/700.

I run 12/12 for all my plants so my DLI/PPFD is gonna be diff. I use an app on my phone for dli/ppfd readings...may not be accurate but it does give ya a # to relate to health. With plants in mid flower to late flower, and with multiple lights, I run somewhere between 700-900 ppfd and 0-50 dli.....
after a few years of perpetual grows, one can generally correlate what relates to what.

turbobuzz said:

What is a good dli/ppfd for autos. I run 18/6, and my GG always droops a couple of hours before lights out. I’m at about 40-42/700.

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A couple of hours is too soon, you probably need to dial the light back some. I don't mind them drooping an hour before lights out if I'm trying to push but a couple is telling you that it's too much. DLI will be different for each strain but what you're seeing is a great indicator of too much light in a day. If you're not getting burnt leaf tips or tacoing from the light being too close then it's the amount it's getting over the course of the day. Try dialing back the intensity slowly until you get them to stay perky until close to lights out. I usually go in 10% increments and give it a couple days.

LewberDewber852 said:

I am thinking of increasing my light schedule to 24 hrs because of humidity issues. Lights on, dehumidifier in my lung room I am between 50-55 rh. Lights out it jumps up to 70. I currently run 18/6. Should I be concerned with herming?

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I had the same issue on my last grow and had no issues with mold, just make sure you have fans blowing on the plants and good air extraction And you'll be fine